diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/cb_pcidas.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/cb_pcidas.c | 1499 |
1 files changed, 0 insertions, 1499 deletions
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c deleted file mode 100644 index 2f20bd56ec6c..000000000000 --- a/drivers/staging/comedi/drivers/cb_pcidas.c +++ /dev/null @@ -1,1499 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * cb_pcidas.c - * Developed by Ivan Martinez and Frank Mori Hess, with valuable help from - * David Schleef and the rest of the Comedi developers comunity. - * - * Copyright (C) 2001-2003 Ivan Martinez <imr@oersted.dtu.dk> - * Copyright (C) 2001,2002 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * COMEDI - Linux Control and Measurement Device Interface - * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> - */ - -/* - * Driver: cb_pcidas - * Description: MeasurementComputing PCI-DAS series - * with the AMCC S5933 PCI controller - * Devices: [Measurement Computing] PCI-DAS1602/16 (cb_pcidas), - * PCI-DAS1602/16jr, PCI-DAS1602/12, PCI-DAS1200, PCI-DAS1200jr, - * PCI-DAS1000, PCI-DAS1001, PCI_DAS1002 - * Author: Ivan Martinez <imr@oersted.dtu.dk>, - * Frank Mori Hess <fmhess@users.sourceforge.net> - * Updated: 2003-3-11 - * - * Status: - * There are many reports of the driver being used with most of the - * supported cards. Despite no detailed log is maintained, it can - * be said that the driver is quite tested and stable. - * - * The boards may be autocalibrated using the comedi_calibrate - * utility. - * - * Configuration options: not applicable, uses PCI auto config - * - * For commands, the scanned channels must be consecutive - * (i.e. 4-5-6-7, 2-3-4,...), and must all have the same - * range and aref. - * - * AI Triggering: - * For start_src == TRIG_EXT, the A/D EXTERNAL TRIGGER IN (pin 45) is used. - * For 1602 series, the start_arg is interpreted as follows: - * start_arg == 0 => gated trigger (level high) - * start_arg == CR_INVERT => gated trigger (level low) - * start_arg == CR_EDGE => Rising edge - * start_arg == CR_EDGE | CR_INVERT => Falling edge - * For the other boards the trigger will be done on rising edge - */ - -/* - * TODO: - * analog triggering on 1602 series - */ - -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/interrupt.h> - -#include "../comedi_pci.h" - -#include "comedi_8254.h" -#include "8255.h" -#include "amcc_s5933.h" - -#define AI_BUFFER_SIZE 1024 /* max ai fifo size */ -#define AO_BUFFER_SIZE 1024 /* max ao fifo size */ - -/* - * PCI BAR1 Register map (devpriv->pcibar1) - */ -#define PCIDAS_CTRL_REG 0x00 /* INTERRUPT / ADC FIFO register */ -#define PCIDAS_CTRL_INT(x) (((x) & 0x3) << 0) -#define PCIDAS_CTRL_INT_NONE PCIDAS_CTRL_INT(0) /* no int selected */ -#define PCIDAS_CTRL_INT_EOS PCIDAS_CTRL_INT(1) /* int on end of scan */ -#define PCIDAS_CTRL_INT_FHF PCIDAS_CTRL_INT(2) /* int on fifo half full */ -#define PCIDAS_CTRL_INT_FNE PCIDAS_CTRL_INT(3) /* int on fifo not empty */ -#define PCIDAS_CTRL_INT_MASK PCIDAS_CTRL_INT(3) /* mask of int select bits */ -#define PCIDAS_CTRL_INTE BIT(2) /* int enable */ -#define PCIDAS_CTRL_DAHFIE BIT(3) /* dac half full int enable */ -#define PCIDAS_CTRL_EOAIE BIT(4) /* end of acq. int enable */ -#define PCIDAS_CTRL_DAHFI BIT(5) /* dac half full status / clear */ -#define PCIDAS_CTRL_EOAI BIT(6) /* end of acq. int status / clear */ -#define PCIDAS_CTRL_INT_CLR BIT(7) /* int status / clear */ -#define PCIDAS_CTRL_EOBI BIT(9) /* end of burst int status */ -#define PCIDAS_CTRL_ADHFI BIT(10) /* half-full int status */ -#define PCIDAS_CTRL_ADNEI BIT(11) /* fifo not empty int status (latch) */ -#define PCIDAS_CTRL_ADNE BIT(12) /* fifo not empty status (realtime) */ -#define PCIDAS_CTRL_DAEMIE BIT(12) /* dac empty int enable */ -#define PCIDAS_CTRL_LADFUL BIT(13) /* fifo overflow / clear */ -#define PCIDAS_CTRL_DAEMI BIT(14) /* dac fifo empty int status / clear */ - -#define PCIDAS_CTRL_AI_INT (PCIDAS_CTRL_EOAI | PCIDAS_CTRL_EOBI | \ - PCIDAS_CTRL_ADHFI | PCIDAS_CTRL_ADNEI | \ - PCIDAS_CTRL_LADFUL) -#define PCIDAS_CTRL_AO_INT (PCIDAS_CTRL_DAHFI | PCIDAS_CTRL_DAEMI) - -#define PCIDAS_AI_REG 0x02 /* ADC CHANNEL MUX AND CONTROL reg */ -#define PCIDAS_AI_FIRST(x) ((x) & 0xf) -#define PCIDAS_AI_LAST(x) (((x) & 0xf) << 4) -#define PCIDAS_AI_CHAN(x) (PCIDAS_AI_FIRST(x) | PCIDAS_AI_LAST(x)) -#define PCIDAS_AI_GAIN(x) (((x) & 0x3) << 8) -#define PCIDAS_AI_SE BIT(10) /* Inputs in single-ended mode */ -#define PCIDAS_AI_UNIP BIT(11) /* Analog front-end unipolar mode */ -#define PCIDAS_AI_PACER(x) (((x) & 0x3) << 12) -#define PCIDAS_AI_PACER_SW PCIDAS_AI_PACER(0) /* software pacer */ -#define PCIDAS_AI_PACER_INT PCIDAS_AI_PACER(1) /* int. pacer */ -#define PCIDAS_AI_PACER_EXTN PCIDAS_AI_PACER(2) /* ext. falling edge */ -#define PCIDAS_AI_PACER_EXTP PCIDAS_AI_PACER(3) /* ext. rising edge */ -#define PCIDAS_AI_PACER_MASK PCIDAS_AI_PACER(3) /* pacer source bits */ -#define PCIDAS_AI_EOC BIT(14) /* adc not busy */ - -#define PCIDAS_TRIG_REG 0x04 /* TRIGGER CONTROL/STATUS register */ -#define PCIDAS_TRIG_SEL(x) (((x) & 0x3) << 0) -#define PCIDAS_TRIG_SEL_NONE PCIDAS_TRIG_SEL(0) /* no start trigger */ -#define PCIDAS_TRIG_SEL_SW PCIDAS_TRIG_SEL(1) /* software start trigger */ -#define PCIDAS_TRIG_SEL_EXT PCIDAS_TRIG_SEL(2) /* ext. start trigger */ -#define PCIDAS_TRIG_SEL_ANALOG PCIDAS_TRIG_SEL(3) /* ext. analog trigger */ -#define PCIDAS_TRIG_SEL_MASK PCIDAS_TRIG_SEL(3) /* start trigger mask */ -#define PCIDAS_TRIG_POL BIT(2) /* invert trigger (1602 only) */ -#define PCIDAS_TRIG_MODE BIT(3) /* edge/level triggered (1602 only) */ -#define PCIDAS_TRIG_EN BIT(4) /* enable external start trigger */ -#define PCIDAS_TRIG_BURSTE BIT(5) /* burst mode enable */ -#define PCIDAS_TRIG_CLR BIT(7) /* clear external trigger */ - -#define PCIDAS_CALIB_REG 0x06 /* CALIBRATION register */ -#define PCIDAS_CALIB_8800_SEL BIT(8) /* select 8800 caldac */ -#define PCIDAS_CALIB_TRIM_SEL BIT(9) /* select ad7376 trim pot */ -#define PCIDAS_CALIB_DAC08_SEL BIT(10) /* select dac08 caldac */ -#define PCIDAS_CALIB_SRC(x) (((x) & 0x7) << 11) -#define PCIDAS_CALIB_EN BIT(14) /* calibration source enable */ -#define PCIDAS_CALIB_DATA BIT(15) /* serial data bit going to caldac */ - -#define PCIDAS_AO_REG 0x08 /* dac control and status register */ -#define PCIDAS_AO_EMPTY BIT(0) /* fifo empty, write clear (1602) */ -#define PCIDAS_AO_DACEN BIT(1) /* dac enable */ -#define PCIDAS_AO_START BIT(2) /* start/arm fifo (1602) */ -#define PCIDAS_AO_PACER(x) (((x) & 0x3) << 3) /* (1602) */ -#define PCIDAS_AO_PACER_SW PCIDAS_AO_PACER(0) /* software pacer */ -#define PCIDAS_AO_PACER_INT PCIDAS_AO_PACER(1) /* int. pacer */ -#define PCIDAS_AO_PACER_EXTN PCIDAS_AO_PACER(2) /* ext. falling edge */ -#define PCIDAS_AO_PACER_EXTP PCIDAS_AO_PACER(3) /* ext. rising edge */ -#define PCIDAS_AO_PACER_MASK PCIDAS_AO_PACER(3) /* pacer source bits */ -#define PCIDAS_AO_CHAN_EN(c) BIT(5 + ((c) & 0x1)) -#define PCIDAS_AO_CHAN_MASK (PCIDAS_AO_CHAN_EN(0) | PCIDAS_AO_CHAN_EN(1)) -#define PCIDAS_AO_UPDATE_BOTH BIT(7) /* update both dacs */ -#define PCIDAS_AO_RANGE(c, r) (((r) & 0x3) << (8 + 2 * ((c) & 0x1))) -#define PCIDAS_AO_RANGE_MASK(c) PCIDAS_AO_RANGE((c), 0x3) - -/* - * PCI BAR2 Register map (devpriv->pcibar2) - */ -#define PCIDAS_AI_DATA_REG 0x00 -#define PCIDAS_AI_FIFO_CLR_REG 0x02 - -/* - * PCI BAR3 Register map (dev->iobase) - */ -#define PCIDAS_AI_8254_BASE 0x00 -#define PCIDAS_8255_BASE 0x04 -#define PCIDAS_AO_8254_BASE 0x08 - -/* - * PCI BAR4 Register map (devpriv->pcibar4) - */ -#define PCIDAS_AO_DATA_REG(x) (0x00 + ((x) * 2)) -#define PCIDAS_AO_FIFO_REG 0x00 -#define PCIDAS_AO_FIFO_CLR_REG 0x02 - -/* analog input ranges for most boards */ -static const struct comedi_lrange cb_pcidas_ranges = { - 8, { - BIP_RANGE(10), - BIP_RANGE(5), - BIP_RANGE(2.5), - BIP_RANGE(1.25), - UNI_RANGE(10), - UNI_RANGE(5), - UNI_RANGE(2.5), - UNI_RANGE(1.25) - } -}; - -/* pci-das1001 input ranges */ -static const struct comedi_lrange cb_pcidas_alt_ranges = { - 8, { - BIP_RANGE(10), - BIP_RANGE(1), - BIP_RANGE(0.1), - BIP_RANGE(0.01), - UNI_RANGE(10), - UNI_RANGE(1), - UNI_RANGE(0.1), - UNI_RANGE(0.01) - } -}; - -/* analog output ranges */ -static const struct comedi_lrange cb_pcidas_ao_ranges = { - 4, { - BIP_RANGE(5), - BIP_RANGE(10), - UNI_RANGE(5), - UNI_RANGE(10) - } -}; - -enum cb_pcidas_boardid { - BOARD_PCIDAS1602_16, - BOARD_PCIDAS1200, - BOARD_PCIDAS1602_12, - BOARD_PCIDAS1200_JR, - BOARD_PCIDAS1602_16_JR, - BOARD_PCIDAS1000, - BOARD_PCIDAS1001, - BOARD_PCIDAS1002, -}; - -struct cb_pcidas_board { - const char *name; - int ai_speed; /* fastest conversion period in ns */ - int ao_scan_speed; /* analog output scan speed for 1602 series */ - int fifo_size; /* number of samples fifo can hold */ - unsigned int is_16bit; /* ai/ao is 1=16-bit; 0=12-bit */ - unsigned int use_alt_range:1; /* use alternate ai range table */ - unsigned int has_ao:1; /* has 2 analog output channels */ - unsigned int has_ao_fifo:1; /* analog output has fifo */ - unsigned int has_ad8402:1; /* trimpot type 1=AD8402; 0=AD7376 */ - unsigned int has_dac08:1; - unsigned int is_1602:1; -}; - -static const struct cb_pcidas_board cb_pcidas_boards[] = { - [BOARD_PCIDAS1602_16] = { - .name = "pci-das1602/16", - .ai_speed = 5000, - .ao_scan_speed = 10000, - .fifo_size = 512, - .is_16bit = 1, - .has_ao = 1, - .has_ao_fifo = 1, - .has_ad8402 = 1, - .has_dac08 = 1, - .is_1602 = 1, - }, - [BOARD_PCIDAS1200] = { - .name = "pci-das1200", - .ai_speed = 3200, - .fifo_size = 1024, - .has_ao = 1, - }, - [BOARD_PCIDAS1602_12] = { - .name = "pci-das1602/12", - .ai_speed = 3200, - .ao_scan_speed = 4000, - .fifo_size = 1024, - .has_ao = 1, - .has_ao_fifo = 1, - .is_1602 = 1, - }, - [BOARD_PCIDAS1200_JR] = { - .name = "pci-das1200/jr", - .ai_speed = 3200, - .fifo_size = 1024, - }, - [BOARD_PCIDAS1602_16_JR] = { - .name = "pci-das1602/16/jr", - .ai_speed = 5000, - .fifo_size = 512, - .is_16bit = 1, - .has_ad8402 = 1, - .has_dac08 = 1, - .is_1602 = 1, - }, - [BOARD_PCIDAS1000] = { - .name = "pci-das1000", - .ai_speed = 4000, - .fifo_size = 1024, - }, - [BOARD_PCIDAS1001] = { - .name = "pci-das1001", - .ai_speed = 6800, - .fifo_size = 1024, - .use_alt_range = 1, - .has_ao = 1, - }, - [BOARD_PCIDAS1002] = { - .name = "pci-das1002", - .ai_speed = 6800, - .fifo_size = 1024, - .has_ao = 1, - }, -}; - -struct cb_pcidas_private { - struct comedi_8254 *ao_pacer; - /* base addresses */ - unsigned long amcc; /* pcibar0 */ - unsigned long pcibar1; - unsigned long pcibar2; - unsigned long pcibar4; - /* bits to write to registers */ - unsigned int ctrl; - unsigned int amcc_intcsr; - unsigned int ao_ctrl; - /* fifo buffers */ - unsigned short ai_buffer[AI_BUFFER_SIZE]; - unsigned short ao_buffer[AO_BUFFER_SIZE]; - unsigned int calib_src; -}; - -static int cb_pcidas_ai_eoc(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned long context) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned int status; - - status = inw(devpriv->pcibar1 + PCIDAS_AI_REG); - if (status & PCIDAS_AI_EOC) - return 0; - return -EBUSY; -} - -static int cb_pcidas_ai_insn_read(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned int chan = CR_CHAN(insn->chanspec); - unsigned int range = CR_RANGE(insn->chanspec); - unsigned int aref = CR_AREF(insn->chanspec); - unsigned int bits; - int ret; - int n; - - /* enable calibration input if appropriate */ - if (insn->chanspec & CR_ALT_SOURCE) { - outw(PCIDAS_CALIB_EN | PCIDAS_CALIB_SRC(devpriv->calib_src), - devpriv->pcibar1 + PCIDAS_CALIB_REG); - chan = 0; - } else { - outw(0, devpriv->pcibar1 + PCIDAS_CALIB_REG); - } - - /* set mux limits and gain */ - bits = PCIDAS_AI_CHAN(chan) | PCIDAS_AI_GAIN(range); - /* set unipolar/bipolar */ - if (comedi_range_is_unipolar(s, range)) - bits |= PCIDAS_AI_UNIP; - /* set single-ended/differential */ - if (aref != AREF_DIFF) - bits |= PCIDAS_AI_SE; - outw(bits, devpriv->pcibar1 + PCIDAS_AI_REG); - - /* clear fifo */ - outw(0, devpriv->pcibar2 + PCIDAS_AI_FIFO_CLR_REG); - - /* convert n samples */ - for (n = 0; n < insn->n; n++) { - /* trigger conversion */ - outw(0, devpriv->pcibar2 + PCIDAS_AI_DATA_REG); - - /* wait for conversion to end */ - ret = comedi_timeout(dev, s, insn, cb_pcidas_ai_eoc, 0); - if (ret) - return ret; - - /* read data */ - data[n] = inw(devpriv->pcibar2 + PCIDAS_AI_DATA_REG); - } - - /* return the number of samples read/written */ - return n; -} - -static int cb_pcidas_ai_insn_config(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - struct cb_pcidas_private *devpriv = dev->private; - int id = data[0]; - unsigned int source = data[1]; - - switch (id) { - case INSN_CONFIG_ALT_SOURCE: - if (source >= 8) { - dev_err(dev->class_dev, - "invalid calibration source: %i\n", - source); - return -EINVAL; - } - devpriv->calib_src = source; - break; - default: - return -EINVAL; - } - return insn->n; -} - -/* analog output insn for pcidas-1000 and 1200 series */ -static int cb_pcidas_ao_nofifo_insn_write(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned int chan = CR_CHAN(insn->chanspec); - unsigned int range = CR_RANGE(insn->chanspec); - unsigned int val = s->readback[chan]; - unsigned long flags; - int i; - - /* set channel and range */ - spin_lock_irqsave(&dev->spinlock, flags); - devpriv->ao_ctrl &= ~(PCIDAS_AO_UPDATE_BOTH | - PCIDAS_AO_RANGE_MASK(chan)); - devpriv->ao_ctrl |= PCIDAS_AO_DACEN | PCIDAS_AO_RANGE(chan, range); - outw(devpriv->ao_ctrl, devpriv->pcibar1 + PCIDAS_AO_REG); - spin_unlock_irqrestore(&dev->spinlock, flags); - - for (i = 0; i < insn->n; i++) { - val = data[i]; - outw(val, devpriv->pcibar4 + PCIDAS_AO_DATA_REG(chan)); - } - - s->readback[chan] = val; - - return insn->n; -} - -/* analog output insn for pcidas-1602 series */ -static int cb_pcidas_ao_fifo_insn_write(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned int chan = CR_CHAN(insn->chanspec); - unsigned int range = CR_RANGE(insn->chanspec); - unsigned int val = s->readback[chan]; - unsigned long flags; - int i; - - /* clear dac fifo */ - outw(0, devpriv->pcibar4 + PCIDAS_AO_FIFO_CLR_REG); - - /* set channel and range */ - spin_lock_irqsave(&dev->spinlock, flags); - devpriv->ao_ctrl &= ~(PCIDAS_AO_CHAN_MASK | PCIDAS_AO_RANGE_MASK(chan) | - PCIDAS_AO_PACER_MASK); - devpriv->ao_ctrl |= PCIDAS_AO_DACEN | PCIDAS_AO_RANGE(chan, range) | - PCIDAS_AO_CHAN_EN(chan) | PCIDAS_AO_START; - outw(devpriv->ao_ctrl, devpriv->pcibar1 + PCIDAS_AO_REG); - spin_unlock_irqrestore(&dev->spinlock, flags); - - for (i = 0; i < insn->n; i++) { - val = data[i]; - outw(val, devpriv->pcibar4 + PCIDAS_AO_FIFO_REG); - } - - s->readback[chan] = val; - - return insn->n; -} - -static int cb_pcidas_eeprom_ready(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned long context) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned int status; - - status = inb(devpriv->amcc + AMCC_OP_REG_MCSR_NVCMD); - if ((status & MCSR_NV_BUSY) == 0) - return 0; - return -EBUSY; -} - -static int cb_pcidas_eeprom_insn_read(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned int chan = CR_CHAN(insn->chanspec); - int ret; - int i; - - for (i = 0; i < insn->n; i++) { - /* make sure eeprom is ready */ - ret = comedi_timeout(dev, s, insn, cb_pcidas_eeprom_ready, 0); - if (ret) - return ret; - - /* set address (chan) and read operation */ - outb(MCSR_NV_ENABLE | MCSR_NV_LOAD_LOW_ADDR, - devpriv->amcc + AMCC_OP_REG_MCSR_NVCMD); - outb(chan & 0xff, devpriv->amcc + AMCC_OP_REG_MCSR_NVDATA); - outb(MCSR_NV_ENABLE | MCSR_NV_LOAD_HIGH_ADDR, - devpriv->amcc + AMCC_OP_REG_MCSR_NVCMD); - outb((chan >> 8) & 0xff, - devpriv->amcc + AMCC_OP_REG_MCSR_NVDATA); - outb(MCSR_NV_ENABLE | MCSR_NV_READ, - devpriv->amcc + AMCC_OP_REG_MCSR_NVCMD); - - /* wait for data to be returned */ - ret = comedi_timeout(dev, s, insn, cb_pcidas_eeprom_ready, 0); - if (ret) - return ret; - - data[i] = inb(devpriv->amcc + AMCC_OP_REG_MCSR_NVDATA); - } - - return insn->n; -} - -static void cb_pcidas_calib_write(struct comedi_device *dev, - unsigned int val, unsigned int len, - bool trimpot) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned int calib_bits; - unsigned int bit; - - calib_bits = PCIDAS_CALIB_EN | PCIDAS_CALIB_SRC(devpriv->calib_src); - if (trimpot) { - /* select trimpot */ - calib_bits |= PCIDAS_CALIB_TRIM_SEL; - outw(calib_bits, devpriv->pcibar1 + PCIDAS_CALIB_REG); - } - - /* write bitstream to calibration device */ - for (bit = 1 << (len - 1); bit; bit >>= 1) { - if (val & bit) - calib_bits |= PCIDAS_CALIB_DATA; - else - calib_bits &= ~PCIDAS_CALIB_DATA; - udelay(1); - outw(calib_bits, devpriv->pcibar1 + PCIDAS_CALIB_REG); - } - udelay(1); - - calib_bits = PCIDAS_CALIB_EN | PCIDAS_CALIB_SRC(devpriv->calib_src); - - if (!trimpot) { - /* select caldac */ - outw(calib_bits | PCIDAS_CALIB_8800_SEL, - devpriv->pcibar1 + PCIDAS_CALIB_REG); - udelay(1); - } - - /* latch value to trimpot/caldac */ - outw(calib_bits, devpriv->pcibar1 + PCIDAS_CALIB_REG); -} - -static int cb_pcidas_caldac_insn_write(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - unsigned int chan = CR_CHAN(insn->chanspec); - - if (insn->n) { - unsigned int val = data[insn->n - 1]; - - if (s->readback[chan] != val) { - /* write 11-bit channel/value to caldac */ - cb_pcidas_calib_write(dev, (chan << 8) | val, 11, - false); - s->readback[chan] = val; - } - } - - return insn->n; -} - -static void cb_pcidas_dac08_write(struct comedi_device *dev, unsigned int val) -{ - struct cb_pcidas_private *devpriv = dev->private; - - val |= PCIDAS_CALIB_EN | PCIDAS_CALIB_SRC(devpriv->calib_src); - - /* latch the new value into the caldac */ - outw(val, devpriv->pcibar1 + PCIDAS_CALIB_REG); - udelay(1); - outw(val | PCIDAS_CALIB_DAC08_SEL, - devpriv->pcibar1 + PCIDAS_CALIB_REG); - udelay(1); - outw(val, devpriv->pcibar1 + PCIDAS_CALIB_REG); - udelay(1); -} - -static int cb_pcidas_dac08_insn_write(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - unsigned int chan = CR_CHAN(insn->chanspec); - - if (insn->n) { - unsigned int val = data[insn->n - 1]; - - if (s->readback[chan] != val) { - cb_pcidas_dac08_write(dev, val); - s->readback[chan] = val; - } - } - - return insn->n; -} - -static void cb_pcidas_trimpot_write(struct comedi_device *dev, - unsigned int chan, unsigned int val) -{ - const struct cb_pcidas_board *board = dev->board_ptr; - - if (board->has_ad8402) { - /* write 10-bit channel/value to AD8402 trimpot */ - cb_pcidas_calib_write(dev, (chan << 8) | val, 10, true); - } else { - /* write 7-bit value to AD7376 trimpot */ - cb_pcidas_calib_write(dev, val, 7, true); - } -} - -static int cb_pcidas_trimpot_insn_write(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) -{ - unsigned int chan = CR_CHAN(insn->chanspec); - - if (insn->n) { - unsigned int val = data[insn->n - 1]; - - if (s->readback[chan] != val) { - cb_pcidas_trimpot_write(dev, chan, val); - s->readback[chan] = val; - } - } - - return insn->n; -} - -static int cb_pcidas_ai_check_chanlist(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_cmd *cmd) -{ - unsigned int chan0 = CR_CHAN(cmd->chanlist[0]); - unsigned int range0 = CR_RANGE(cmd->chanlist[0]); - int i; - - for (i = 1; i < cmd->chanlist_len; i++) { - unsigned int chan = CR_CHAN(cmd->chanlist[i]); - unsigned int range = CR_RANGE(cmd->chanlist[i]); - - if (chan != (chan0 + i) % s->n_chan) { - dev_dbg(dev->class_dev, - "entries in chanlist must be consecutive channels, counting upwards\n"); - return -EINVAL; - } - - if (range != range0) { - dev_dbg(dev->class_dev, - "entries in chanlist must all have the same gain\n"); - return -EINVAL; - } - } - return 0; -} - -static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_cmd *cmd) -{ - const struct cb_pcidas_board *board = dev->board_ptr; - int err = 0; - unsigned int arg; - - /* Step 1 : check if triggers are trivially valid */ - - err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT); - err |= comedi_check_trigger_src(&cmd->scan_begin_src, - TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT); - err |= comedi_check_trigger_src(&cmd->convert_src, - TRIG_TIMER | TRIG_NOW | TRIG_EXT); - err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); - err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); - - if (err) - return 1; - - /* Step 2a : make sure trigger sources are unique */ - - err |= comedi_check_trigger_is_unique(cmd->start_src); - err |= comedi_check_trigger_is_unique(cmd->scan_begin_src); - err |= comedi_check_trigger_is_unique(cmd->convert_src); - err |= comedi_check_trigger_is_unique(cmd->stop_src); - - /* Step 2b : and mutually compatible */ - - if (cmd->scan_begin_src == TRIG_FOLLOW && cmd->convert_src == TRIG_NOW) - err |= -EINVAL; - if (cmd->scan_begin_src != TRIG_FOLLOW && cmd->convert_src != TRIG_NOW) - err |= -EINVAL; - if (cmd->start_src == TRIG_EXT && - (cmd->convert_src == TRIG_EXT || cmd->scan_begin_src == TRIG_EXT)) - err |= -EINVAL; - - if (err) - return 2; - - /* Step 3: check if arguments are trivially valid */ - - switch (cmd->start_src) { - case TRIG_NOW: - err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0); - break; - case TRIG_EXT: - /* External trigger, only CR_EDGE and CR_INVERT flags allowed */ - if ((cmd->start_arg - & (CR_FLAGS_MASK & ~(CR_EDGE | CR_INVERT))) != 0) { - cmd->start_arg &= ~(CR_FLAGS_MASK & - ~(CR_EDGE | CR_INVERT)); - err |= -EINVAL; - } - if (!board->is_1602 && (cmd->start_arg & CR_INVERT)) { - cmd->start_arg &= (CR_FLAGS_MASK & ~CR_INVERT); - err |= -EINVAL; - } - break; - } - - if (cmd->scan_begin_src == TRIG_TIMER) { - err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, - board->ai_speed * - cmd->chanlist_len); - } - - if (cmd->convert_src == TRIG_TIMER) { - err |= comedi_check_trigger_arg_min(&cmd->convert_arg, - board->ai_speed); - } - - err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, - cmd->chanlist_len); - - if (cmd->stop_src == TRIG_COUNT) - err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1); - else /* TRIG_NONE */ - err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0); - - if (err) - return 3; - - /* step 4: fix up any arguments */ - - if (cmd->scan_begin_src == TRIG_TIMER) { - arg = cmd->scan_begin_arg; - comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags); - err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg); - } - if (cmd->convert_src == TRIG_TIMER) { - arg = cmd->convert_arg; - comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags); - err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg); - } - - if (err) - return 4; - - /* Step 5: check channel list if it exists */ - if (cmd->chanlist && cmd->chanlist_len > 0) - err |= cb_pcidas_ai_check_chanlist(dev, s, cmd); - - if (err) - return 5; - - return 0; -} - -static int cb_pcidas_ai_cmd(struct comedi_device *dev, - struct comedi_subdevice *s) -{ - const struct cb_pcidas_board *board = dev->board_ptr; - struct cb_pcidas_private *devpriv = dev->private; - struct comedi_async *async = s->async; - struct comedi_cmd *cmd = &async->cmd; - unsigned int range0 = CR_RANGE(cmd->chanlist[0]); - unsigned int bits; - unsigned long flags; - - /* make sure PCIDAS_CALIB_EN is disabled */ - outw(0, devpriv->pcibar1 + PCIDAS_CALIB_REG); - /* initialize before settings pacer source and count values */ - outw(PCIDAS_TRIG_SEL_NONE, devpriv->pcibar1 + PCIDAS_TRIG_REG); - /* clear fifo */ - outw(0, devpriv->pcibar2 + PCIDAS_AI_FIFO_CLR_REG); - - /* set mux limits, gain and pacer source */ - bits = PCIDAS_AI_FIRST(CR_CHAN(cmd->chanlist[0])) | - PCIDAS_AI_LAST(CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1])) | - PCIDAS_AI_GAIN(range0); - /* set unipolar/bipolar */ - if (comedi_range_is_unipolar(s, range0)) - bits |= PCIDAS_AI_UNIP; - /* set singleended/differential */ - if (CR_AREF(cmd->chanlist[0]) != AREF_DIFF) - bits |= PCIDAS_AI_SE; - /* set pacer source */ - if (cmd->convert_src == TRIG_EXT || cmd->scan_begin_src == TRIG_EXT) - bits |= PCIDAS_AI_PACER_EXTP; - else - bits |= PCIDAS_AI_PACER_INT; - outw(bits, devpriv->pcibar1 + PCIDAS_AI_REG); - - /* load counters */ - if (cmd->scan_begin_src == TRIG_TIMER || - cmd->convert_src == TRIG_TIMER) { - comedi_8254_update_divisors(dev->pacer); - comedi_8254_pacer_enable(dev->pacer, 1, 2, true); - } - - /* enable interrupts */ - spin_lock_irqsave(&dev->spinlock, flags); - devpriv->ctrl |= PCIDAS_CTRL_INTE; - devpriv->ctrl &= ~PCIDAS_CTRL_INT_MASK; - if (cmd->flags & CMDF_WAKE_EOS) { - if (cmd->convert_src == TRIG_NOW && cmd->chanlist_len > 1) { - /* interrupt end of burst */ - devpriv->ctrl |= PCIDAS_CTRL_INT_EOS; - } else { - /* interrupt fifo not empty */ - devpriv->ctrl |= PCIDAS_CTRL_INT_FNE; - } - } else { - /* interrupt fifo half full */ - devpriv->ctrl |= PCIDAS_CTRL_INT_FHF; - } - - /* enable (and clear) interrupts */ - outw(devpriv->ctrl | - PCIDAS_CTRL_EOAI | PCIDAS_CTRL_INT_CLR | PCIDAS_CTRL_LADFUL, - devpriv->pcibar1 + PCIDAS_CTRL_REG); - spin_unlock_irqrestore(&dev->spinlock, flags); - - /* set start trigger and burst mode */ - bits = 0; - if (cmd->start_src == TRIG_NOW) { - bits |= PCIDAS_TRIG_SEL_SW; - } else { /* TRIG_EXT */ - bits |= PCIDAS_TRIG_SEL_EXT | PCIDAS_TRIG_EN | PCIDAS_TRIG_CLR; - if (board->is_1602) { - if (cmd->start_arg & CR_INVERT) - bits |= PCIDAS_TRIG_POL; - if (cmd->start_arg & CR_EDGE) - bits |= PCIDAS_TRIG_MODE; - } - } - if (cmd->convert_src == TRIG_NOW && cmd->chanlist_len > 1) - bits |= PCIDAS_TRIG_BURSTE; - outw(bits, devpriv->pcibar1 + PCIDAS_TRIG_REG); - - return 0; -} - -static int cb_pcidas_ao_check_chanlist(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_cmd *cmd) -{ - unsigned int chan0 = CR_CHAN(cmd->chanlist[0]); - - if (cmd->chanlist_len > 1) { - unsigned int chan1 = CR_CHAN(cmd->chanlist[1]); - - if (chan0 != 0 || chan1 != 1) { - dev_dbg(dev->class_dev, - "channels must be ordered channel 0, channel 1 in chanlist\n"); - return -EINVAL; - } - } - - return 0; -} - -static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_cmd *cmd) -{ - const struct cb_pcidas_board *board = dev->board_ptr; - struct cb_pcidas_private *devpriv = dev->private; - int err = 0; - - /* Step 1 : check if triggers are trivially valid */ - - err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT); - err |= comedi_check_trigger_src(&cmd->scan_begin_src, - TRIG_TIMER | TRIG_EXT); - err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW); - err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); - err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE); - - if (err) - return 1; - - /* Step 2a : make sure trigger sources are unique */ - - err |= comedi_check_trigger_is_unique(cmd->scan_begin_src); - err |= comedi_check_trigger_is_unique(cmd->stop_src); - - /* Step 2b : and mutually compatible */ - - if (err) - return 2; - - /* Step 3: check if arguments are trivially valid */ - - err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0); - - if (cmd->scan_begin_src == TRIG_TIMER) { - err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, - board->ao_scan_speed); - } - - err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, - cmd->chanlist_len); - - if (cmd->stop_src == TRIG_COUNT) - err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1); - else /* TRIG_NONE */ - err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0); - - if (err) - return 3; - - /* step 4: fix up any arguments */ - - if (cmd->scan_begin_src == TRIG_TIMER) { - unsigned int arg = cmd->scan_begin_arg; - - comedi_8254_cascade_ns_to_timer(devpriv->ao_pacer, - &arg, cmd->flags); - err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg); - } - - if (err) - return 4; - - /* Step 5: check channel list if it exists */ - if (cmd->chanlist && cmd->chanlist_len > 0) - err |= cb_pcidas_ao_check_chanlist(dev, s, cmd); - - if (err) - return 5; - - return 0; -} - -static int cb_pcidas_ai_cancel(struct comedi_device *dev, - struct comedi_subdevice *s) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned long flags; - - spin_lock_irqsave(&dev->spinlock, flags); - /* disable interrupts */ - devpriv->ctrl &= ~(PCIDAS_CTRL_INTE | PCIDAS_CTRL_EOAIE); - outw(devpriv->ctrl, devpriv->pcibar1 + PCIDAS_CTRL_REG); - spin_unlock_irqrestore(&dev->spinlock, flags); - - /* disable start trigger source and burst mode */ - outw(PCIDAS_TRIG_SEL_NONE, devpriv->pcibar1 + PCIDAS_TRIG_REG); - outw(PCIDAS_AI_PACER_SW, devpriv->pcibar1 + PCIDAS_AI_REG); - - return 0; -} - -static void cb_pcidas_ao_load_fifo(struct comedi_device *dev, - struct comedi_subdevice *s, - unsigned int nsamples) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned int nbytes; - - nsamples = comedi_nsamples_left(s, nsamples); - nbytes = comedi_buf_read_samples(s, devpriv->ao_buffer, nsamples); - - nsamples = comedi_bytes_to_samples(s, nbytes); - outsw(devpriv->pcibar4 + PCIDAS_AO_FIFO_REG, - devpriv->ao_buffer, nsamples); -} - -static int cb_pcidas_ao_inttrig(struct comedi_device *dev, - struct comedi_subdevice *s, - unsigned int trig_num) -{ - const struct cb_pcidas_board *board = dev->board_ptr; - struct cb_pcidas_private *devpriv = dev->private; - struct comedi_async *async = s->async; - struct comedi_cmd *cmd = &async->cmd; - unsigned long flags; - - if (trig_num != cmd->start_arg) - return -EINVAL; - - cb_pcidas_ao_load_fifo(dev, s, board->fifo_size); - - /* enable dac half-full and empty interrupts */ - spin_lock_irqsave(&dev->spinlock, flags); - devpriv->ctrl |= PCIDAS_CTRL_DAEMIE | PCIDAS_CTRL_DAHFIE; - - /* enable and clear interrupts */ - outw(devpriv->ctrl | PCIDAS_CTRL_DAEMI | PCIDAS_CTRL_DAHFI, - devpriv->pcibar1 + PCIDAS_CTRL_REG); - - /* start dac */ - devpriv->ao_ctrl |= PCIDAS_AO_START | PCIDAS_AO_DACEN | PCIDAS_AO_EMPTY; - outw(devpriv->ao_ctrl, devpriv->pcibar1 + PCIDAS_AO_REG); - - spin_unlock_irqrestore(&dev->spinlock, flags); - - async->inttrig = NULL; - - return 0; -} - -static int cb_pcidas_ao_cmd(struct comedi_device *dev, - struct comedi_subdevice *s) -{ - struct cb_pcidas_private *devpriv = dev->private; - struct comedi_async *async = s->async; - struct comedi_cmd *cmd = &async->cmd; - unsigned int i; - unsigned long flags; - - /* set channel limits, gain */ - spin_lock_irqsave(&dev->spinlock, flags); - for (i = 0; i < cmd->chanlist_len; i++) { - unsigned int chan = CR_CHAN(cmd->chanlist[i]); - unsigned int range = CR_RANGE(cmd->chanlist[i]); - - /* enable channel */ - devpriv->ao_ctrl |= PCIDAS_AO_CHAN_EN(chan); - /* set range */ - devpriv->ao_ctrl |= PCIDAS_AO_RANGE(chan, range); - } - - /* disable analog out before settings pacer source and count values */ - outw(devpriv->ao_ctrl, devpriv->pcibar1 + PCIDAS_AO_REG); - spin_unlock_irqrestore(&dev->spinlock, flags); - - /* clear fifo */ - outw(0, devpriv->pcibar4 + PCIDAS_AO_FIFO_CLR_REG); - - /* load counters */ - if (cmd->scan_begin_src == TRIG_TIMER) { - comedi_8254_update_divisors(devpriv->ao_pacer); - comedi_8254_pacer_enable(devpriv->ao_pacer, 1, 2, true); - } - - /* set pacer source */ - spin_lock_irqsave(&dev->spinlock, flags); - switch (cmd->scan_begin_src) { - case TRIG_TIMER: - devpriv->ao_ctrl |= PCIDAS_AO_PACER_INT; - break; - case TRIG_EXT: - devpriv->ao_ctrl |= PCIDAS_AO_PACER_EXTP; - break; - default: - spin_unlock_irqrestore(&dev->spinlock, flags); - dev_err(dev->class_dev, "error setting dac pacer source\n"); - return -1; - } - spin_unlock_irqrestore(&dev->spinlock, flags); - - async->inttrig = cb_pcidas_ao_inttrig; - - return 0; -} - -static int cb_pcidas_ao_cancel(struct comedi_device *dev, - struct comedi_subdevice *s) -{ - struct cb_pcidas_private *devpriv = dev->private; - unsigned long flags; - - spin_lock_irqsave(&dev->spinlock, flags); - /* disable interrupts */ - devpriv->ctrl &= ~(PCIDAS_CTRL_DAHFIE | PCIDAS_CTRL_DAEMIE); - outw(devpriv->ctrl, devpriv->pcibar1 + PCIDAS_CTRL_REG); - - /* disable output */ - devpriv->ao_ctrl &= ~(PCIDAS_AO_DACEN | PCIDAS_AO_PACER_MASK); - outw(devpriv->ao_ctrl, devpriv->pcibar1 + PCIDAS_AO_REG); - spin_unlock_irqrestore(&dev->spinlock, flags); - - return 0; -} - -static unsigned int cb_pcidas_ao_interrupt(struct comedi_device *dev, - unsigned int status) -{ - const struct cb_pcidas_board *board = dev->board_ptr; - struct cb_pcidas_private *devpriv = dev->private; - struct comedi_subdevice *s = dev->write_subdev; - struct comedi_async *async = s->async; - struct comedi_cmd *cmd = &async->cmd; - unsigned int irq_clr = 0; - - if (status & PCIDAS_CTRL_DAEMI) { - irq_clr |= PCIDAS_CTRL_DAEMI; - - if (inw(devpriv->pcibar4 + PCIDAS_AO_REG) & PCIDAS_AO_EMPTY) { - if (cmd->stop_src == TRIG_COUNT && - async->scans_done >= cmd->stop_arg) { - async->events |= COMEDI_CB_EOA; - } else { - dev_err(dev->class_dev, "dac fifo underflow\n"); - async->events |= COMEDI_CB_ERROR; - } - } - } else if (status & PCIDAS_CTRL_DAHFI) { - irq_clr |= PCIDAS_CTRL_DAHFI; - - cb_pcidas_ao_load_fifo(dev, s, board->fifo_size / 2); - } - - comedi_handle_events(dev, s); - - return irq_clr; -} - -static unsigned int cb_pcidas_ai_interrupt(struct comedi_device *dev, - unsigned int status) -{ - const struct cb_pcidas_board *board = dev->board_ptr; - struct cb_pcidas_private *devpriv = dev->private; - struct comedi_subdevice *s = dev->read_subdev; - struct comedi_async *async = s->async; - struct comedi_cmd *cmd = &async->cmd; - unsigned int irq_clr = 0; - - if (status & PCIDAS_CTRL_ADHFI) { - unsigned int num_samples; - - irq_clr |= PCIDAS_CTRL_INT_CLR; - - /* FIFO is half-full - read data */ - num_samples = comedi_nsamples_left(s, board->fifo_size / 2); - insw(devpriv->pcibar2 + PCIDAS_AI_DATA_REG, - devpriv->ai_buffer, num_samples); - comedi_buf_write_samples(s, devpriv->ai_buffer, num_samples); - - if (cmd->stop_src == TRIG_COUNT && - async->scans_done >= cmd->stop_arg) - async->events |= COMEDI_CB_EOA; - } else if (status & (PCIDAS_CTRL_ADNEI | PCIDAS_CTRL_EOBI)) { - unsigned int i; - - irq_clr |= PCIDAS_CTRL_INT_CLR; - - /* FIFO is not empty - read data until empty or timeoout */ - for (i = 0; i < 10000; i++) { - unsigned short val; - - /* break if fifo is empty */ - if ((inw(devpriv->pcibar1 + PCIDAS_CTRL_REG) & - PCIDAS_CTRL_ADNE) == 0) - break; - val = inw(devpriv->pcibar2 + PCIDAS_AI_DATA_REG); - comedi_buf_write_samples(s, &val, 1); - - if (cmd->stop_src == TRIG_COUNT && - async->scans_done >= cmd->stop_arg) { - async->events |= COMEDI_CB_EOA; - break; - } - } - } else if (status & PCIDAS_CTRL_EOAI) { - irq_clr |= PCIDAS_CTRL_EOAI; - - dev_err(dev->class_dev, - "bug! encountered end of acquisition interrupt?\n"); - } - - /* check for fifo overflow */ - if (status & PCIDAS_CTRL_LADFUL) { - irq_clr |= PCIDAS_CTRL_LADFUL; - - dev_err(dev->class_dev, "fifo overflow\n"); - async->events |= COMEDI_CB_ERROR; - } - - comedi_handle_events(dev, s); - - return irq_clr; -} - -static irqreturn_t cb_pcidas_interrupt(int irq, void *d) -{ - struct comedi_device *dev = d; - struct cb_pcidas_private *devpriv = dev->private; - unsigned int irq_clr = 0; - unsigned int amcc_status; - unsigned int status; - - if (!dev->attached) - return IRQ_NONE; - - amcc_status = inl(devpriv->amcc + AMCC_OP_REG_INTCSR); - - if ((INTCSR_INTR_ASSERTED & amcc_status) == 0) - return IRQ_NONE; - - /* make sure mailbox 4 is empty */ - inl_p(devpriv->amcc + AMCC_OP_REG_IMB4); - /* clear interrupt on amcc s5933 */ - outl(devpriv->amcc_intcsr | INTCSR_INBOX_INTR_STATUS, - devpriv->amcc + AMCC_OP_REG_INTCSR); - - status = inw(devpriv->pcibar1 + PCIDAS_CTRL_REG); - - /* handle analog output interrupts */ - if (status & PCIDAS_CTRL_AO_INT) - irq_clr |= cb_pcidas_ao_interrupt(dev, status); - - /* handle analog input interrupts */ - if (status & PCIDAS_CTRL_AI_INT) - irq_clr |= cb_pcidas_ai_interrupt(dev, status); - - if (irq_clr) { - unsigned long flags; - - spin_lock_irqsave(&dev->spinlock, flags); - outw(devpriv->ctrl | irq_clr, - devpriv->pcibar1 + PCIDAS_CTRL_REG); - spin_unlock_irqrestore(&dev->spinlock, flags); - } - - return IRQ_HANDLED; -} - -static int cb_pcidas_auto_attach(struct comedi_device *dev, - unsigned long context) -{ - struct pci_dev *pcidev = comedi_to_pci_dev(dev); - const struct cb_pcidas_board *board = NULL; - struct cb_pcidas_private *devpriv; - struct comedi_subdevice *s; - int i; - int ret; - - if (context < ARRAY_SIZE(cb_pcidas_boards)) - board = &cb_pcidas_boards[context]; - if (!board) - return -ENODEV; - dev->board_ptr = board; - dev->board_name = board->name; - - devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); - if (!devpriv) - return -ENOMEM; - - ret = comedi_pci_enable(dev); - if (ret) - return ret; - - devpriv->amcc = pci_resource_start(pcidev, 0); - devpriv->pcibar1 = pci_resource_start(pcidev, 1); - devpriv->pcibar2 = pci_resource_start(pcidev, 2); - dev->iobase = pci_resource_start(pcidev, 3); - if (board->has_ao) - devpriv->pcibar4 = pci_resource_start(pcidev, 4); - - /* disable and clear interrupts on amcc s5933 */ - outl(INTCSR_INBOX_INTR_STATUS, - devpriv->amcc + AMCC_OP_REG_INTCSR); - - ret = request_irq(pcidev->irq, cb_pcidas_interrupt, IRQF_SHARED, - "cb_pcidas", dev); - if (ret) { - dev_dbg(dev->class_dev, "unable to allocate irq %d\n", - pcidev->irq); - return ret; - } - dev->irq = pcidev->irq; - - dev->pacer = comedi_8254_init(dev->iobase + PCIDAS_AI_8254_BASE, - I8254_OSC_BASE_10MHZ, I8254_IO8, 0); - if (!dev->pacer) - return -ENOMEM; - - devpriv->ao_pacer = comedi_8254_init(dev->iobase + PCIDAS_AO_8254_BASE, - I8254_OSC_BASE_10MHZ, - I8254_IO8, 0); - if (!devpriv->ao_pacer) - return -ENOMEM; - - ret = comedi_alloc_subdevices(dev, 7); - if (ret) - return ret; - - /* Analog Input subdevice */ - s = &dev->subdevices[0]; - s->type = COMEDI_SUBD_AI; - s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF; - s->n_chan = 16; - s->maxdata = board->is_16bit ? 0xffff : 0x0fff; - s->range_table = board->use_alt_range ? &cb_pcidas_alt_ranges - : &cb_pcidas_ranges; - s->insn_read = cb_pcidas_ai_insn_read; - s->insn_config = cb_pcidas_ai_insn_config; - if (dev->irq) { - dev->read_subdev = s; - s->subdev_flags |= SDF_CMD_READ; - s->len_chanlist = s->n_chan; - s->do_cmd = cb_pcidas_ai_cmd; - s->do_cmdtest = cb_pcidas_ai_cmdtest; - s->cancel = cb_pcidas_ai_cancel; - } - - /* Analog Output subdevice */ - s = &dev->subdevices[1]; - if (board->has_ao) { - s->type = COMEDI_SUBD_AO; - s->subdev_flags = SDF_WRITABLE | SDF_GROUND; - s->n_chan = 2; - s->maxdata = board->is_16bit ? 0xffff : 0x0fff; - s->range_table = &cb_pcidas_ao_ranges; - s->insn_write = (board->has_ao_fifo) - ? cb_pcidas_ao_fifo_insn_write - : cb_pcidas_ao_nofifo_insn_write; - - ret = comedi_alloc_subdev_readback(s); - if (ret) - return ret; - - if (dev->irq && board->has_ao_fifo) { - dev->write_subdev = s; - s->subdev_flags |= SDF_CMD_WRITE; - s->len_chanlist = s->n_chan; - s->do_cmdtest = cb_pcidas_ao_cmdtest; - s->do_cmd = cb_pcidas_ao_cmd; - s->cancel = cb_pcidas_ao_cancel; - } - } else { - s->type = COMEDI_SUBD_UNUSED; - } - - /* 8255 */ - s = &dev->subdevices[2]; - ret = subdev_8255_init(dev, s, NULL, PCIDAS_8255_BASE); - if (ret) - return ret; - - /* Memory subdevice - serial EEPROM */ - s = &dev->subdevices[3]; - s->type = COMEDI_SUBD_MEMORY; - s->subdev_flags = SDF_READABLE | SDF_INTERNAL; - s->n_chan = 256; - s->maxdata = 0xff; - s->insn_read = cb_pcidas_eeprom_insn_read; - - /* Calibration subdevice - 8800 caldac */ - s = &dev->subdevices[4]; - s->type = COMEDI_SUBD_CALIB; - s->subdev_flags = SDF_WRITABLE | SDF_INTERNAL; - s->n_chan = 8; - s->maxdata = 0xff; - s->insn_write = cb_pcidas_caldac_insn_write; - - ret = comedi_alloc_subdev_readback(s); - if (ret) - return ret; - - for (i = 0; i < s->n_chan; i++) { - unsigned int val = s->maxdata / 2; - - /* write 11-bit channel/value to caldac */ - cb_pcidas_calib_write(dev, (i << 8) | val, 11, false); - s->readback[i] = val; - } - - /* Calibration subdevice - trim potentiometer */ - s = &dev->subdevices[5]; - s->type = COMEDI_SUBD_CALIB; - s->subdev_flags = SDF_WRITABLE | SDF_INTERNAL; - if (board->has_ad8402) { - /* - * pci-das1602/16 have an AD8402 trimpot: - * chan 0 : adc gain - * chan 1 : adc postgain offset - */ - s->n_chan = 2; - s->maxdata = 0xff; - } else { - /* all other boards have an AD7376 trimpot */ - s->n_chan = 1; - s->maxdata = 0x7f; - } - s->insn_write = cb_pcidas_trimpot_insn_write; - - ret = comedi_alloc_subdev_readback(s); - if (ret) - return ret; - - for (i = 0; i < s->n_chan; i++) { - cb_pcidas_trimpot_write(dev, i, s->maxdata / 2); - s->readback[i] = s->maxdata / 2; - } - - /* Calibration subdevice - pci-das1602/16 pregain offset (dac08) */ - s = &dev->subdevices[6]; - if (board->has_dac08) { - s->type = COMEDI_SUBD_CALIB; - s->subdev_flags = SDF_WRITABLE | SDF_INTERNAL; - s->n_chan = 1; - s->maxdata = 0xff; - s->insn_write = cb_pcidas_dac08_insn_write; - - ret = comedi_alloc_subdev_readback(s); - if (ret) - return ret; - - for (i = 0; i < s->n_chan; i++) { - cb_pcidas_dac08_write(dev, s->maxdata / 2); - s->readback[i] = s->maxdata / 2; - } - } else { - s->type = COMEDI_SUBD_UNUSED; - } - - /* make sure mailbox 4 is empty */ - inl(devpriv->amcc + AMCC_OP_REG_IMB4); - /* Set bits to enable incoming mailbox interrupts on amcc s5933. */ - devpriv->amcc_intcsr = INTCSR_INBOX_BYTE(3) | INTCSR_INBOX_SELECT(3) | - INTCSR_INBOX_FULL_INT; - /* clear and enable interrupt on amcc s5933 */ - outl(devpriv->amcc_intcsr | INTCSR_INBOX_INTR_STATUS, - devpriv->amcc + AMCC_OP_REG_INTCSR); - - return 0; -} - -static void cb_pcidas_detach(struct comedi_device *dev) -{ - struct cb_pcidas_private *devpriv = dev->private; - - if (devpriv) { - if (devpriv->amcc) - outl(INTCSR_INBOX_INTR_STATUS, - devpriv->amcc + AMCC_OP_REG_INTCSR); - kfree(devpriv->ao_pacer); - } - comedi_pci_detach(dev); -} - -static struct comedi_driver cb_pcidas_driver = { - .driver_name = "cb_pcidas", - .module = THIS_MODULE, - .auto_attach = cb_pcidas_auto_attach, - .detach = cb_pcidas_detach, -}; - -static int cb_pcidas_pci_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - return comedi_pci_auto_config(dev, &cb_pcidas_driver, - id->driver_data); -} - -static const struct pci_device_id cb_pcidas_pci_table[] = { - { PCI_VDEVICE(CB, 0x0001), BOARD_PCIDAS1602_16 }, - { PCI_VDEVICE(CB, 0x000f), BOARD_PCIDAS1200 }, - { PCI_VDEVICE(CB, 0x0010), BOARD_PCIDAS1602_12 }, - { PCI_VDEVICE(CB, 0x0019), BOARD_PCIDAS1200_JR }, - { PCI_VDEVICE(CB, 0x001c), BOARD_PCIDAS1602_16_JR }, - { PCI_VDEVICE(CB, 0x004c), BOARD_PCIDAS1000 }, - { PCI_VDEVICE(CB, 0x001a), BOARD_PCIDAS1001 }, - { PCI_VDEVICE(CB, 0x001b), BOARD_PCIDAS1002 }, - { 0 } -}; -MODULE_DEVICE_TABLE(pci, cb_pcidas_pci_table); - -static struct pci_driver cb_pcidas_pci_driver = { - .name = "cb_pcidas", - .id_table = cb_pcidas_pci_table, - .probe = cb_pcidas_pci_probe, - .remove = comedi_pci_auto_unconfig, -}; -module_comedi_pci_driver(cb_pcidas_driver, cb_pcidas_pci_driver); - -MODULE_AUTHOR("Comedi https://www.comedi.org"); -MODULE_DESCRIPTION("Comedi driver for MeasurementComputing PCI-DAS series"); -MODULE_LICENSE("GPL"); |